3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private static $instance = null; final private function __construct() {} final private function __clone() {} public static function getInstance() { if (!self::$instance) { self::$instance = new self; } return self::$instance; } } $oneInstance = Singleton::getInstance(); //echo "Cloneable outside:", var_dump((new ReflectionClass('Singleton'))->isCloneable()); $creator = function () { echo "Cloneable inside:", var_dump((new ReflectionObject($this))->isCloneable()); return clone $this; }; $secondInstance = $creator->bindTo($oneInstance, 'Singleton')->__invoke(); var_dump($oneInstance, $secondInstance);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0060.00918.97
8.3.30.0130.00020.39
8.3.20.0000.00720.16
8.3.10.0050.00322.10
8.3.00.0040.00422.38
8.2.170.0100.01022.96
8.2.160.0100.00722.21
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.63
8.2.110.0060.00320.41
8.2.100.0060.00617.91
8.2.90.0000.00719.22
8.2.80.0040.00419.21
8.2.70.0050.00317.63
8.2.60.0080.00017.93
8.2.50.0100.00318.07
8.2.40.0090.00018.22
8.2.30.0040.00418.15
8.2.20.0040.00417.58
8.2.10.0030.00517.70
8.2.00.0000.01117.80
8.1.270.0080.00024.66
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00023.92
8.1.230.0070.00419.02
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0080.00017.36
8.1.190.0040.00417.63
8.1.180.0040.00419.13
8.1.170.0000.00718.62
8.1.160.0000.00922.07
8.1.150.0080.00018.66
8.1.140.0040.00417.38
8.1.130.0030.00317.77
8.1.120.0000.00717.47
8.1.110.0050.00317.45
8.1.100.0050.00217.46
8.1.90.0000.00717.53
8.1.80.0040.00417.44
8.1.70.0000.00717.48
8.1.60.0030.00617.48
8.1.50.0000.00817.59
8.1.40.0090.00017.54
8.1.30.0030.00517.54
8.1.20.0050.00317.51
8.1.10.0040.00417.56
8.1.00.0060.00317.41
8.0.300.0000.00718.77
8.0.290.0040.00417.18
8.0.280.0070.00018.46
8.0.270.0000.00717.19
8.0.260.0000.00716.81
8.0.250.0070.00017.08
8.0.240.0050.00317.08
8.0.230.0030.00317.09
8.0.220.0030.00316.86
8.0.210.0040.00416.86
8.0.200.0000.00717.04
8.0.190.0000.00717.02
8.0.180.0040.00417.00
8.0.170.0040.00416.95
8.0.160.0000.00716.93
8.0.150.0050.00216.90
8.0.140.0000.00716.95
8.0.130.0030.00313.34
8.0.120.0000.00916.91
8.0.110.0050.00317.00
8.0.100.0040.00416.84
8.0.90.0050.00216.77
8.0.80.0100.00616.94
8.0.70.0000.00717.03
8.0.60.0040.00416.80
8.0.50.0000.00716.86
8.0.30.0080.01117.27
8.0.20.0130.00717.40
8.0.10.0040.00416.94
8.0.00.0120.00716.70
7.4.330.0070.00015.00
7.4.320.0030.00316.59
7.4.300.0040.00416.55
7.4.290.0000.00816.51
7.4.280.0080.00016.54
7.4.270.0000.00716.63
7.4.260.0070.00016.64
7.4.250.0070.00016.61
7.4.240.0030.00316.63
7.4.230.0000.00716.59
7.4.220.0030.01516.69
7.4.210.0080.00716.56
7.4.200.0080.00016.61
7.4.190.0000.00716.69
7.4.160.0160.00316.38
7.4.150.0120.00617.40
7.4.140.0100.00817.86
7.4.130.0050.01216.61
7.4.120.0090.00816.69
7.4.110.0140.00716.50
7.4.100.0040.02116.43
7.4.90.0170.00316.45
7.4.80.0080.01219.39
7.4.70.0060.01216.59
7.4.60.0120.01016.38
7.4.50.0030.00516.56
7.4.40.0030.01322.77
7.4.30.0090.00616.32
7.4.00.0090.00014.93
7.3.330.0000.00613.34
7.3.320.0030.00313.31
7.3.310.0000.00716.29
7.3.300.0000.00716.34
7.3.290.0060.00916.32
7.3.280.0100.00516.28
7.3.270.0100.01017.40
7.3.260.0170.00016.25
7.3.250.0070.01116.33
7.3.240.0030.01616.30
7.3.230.0120.00416.39
7.3.210.0090.00916.14
7.3.200.0080.01519.39
7.3.190.0100.01416.13
7.3.180.0070.01516.46
7.3.170.0090.00616.37
7.3.160.0100.00716.33
7.3.120.0100.00714.80
7.3.10.0060.01016.14
7.3.00.0060.00916.20
7.2.330.0050.01116.55
7.2.320.0120.00916.84
7.2.310.0090.00916.77
7.2.300.0100.00616.68
7.2.290.0060.01216.64
7.2.130.0040.01416.07
7.2.120.0040.01416.27
7.2.110.0210.00316.06
7.2.100.0100.01416.50
7.2.90.0100.00716.43
7.2.80.0150.00616.57
7.2.70.0120.00916.43
7.2.60.0140.00316.80
7.2.50.0150.00716.52
7.2.40.0070.01016.61
7.2.30.0100.00616.23
7.2.20.0140.00716.43
7.2.10.0040.00716.82
7.2.00.0000.01716.59
7.1.250.0130.01015.41
7.1.200.0040.00415.61
7.1.70.0030.00916.93
7.1.60.0030.02119.43
7.1.50.0040.00716.72
7.1.00.0030.03322.35
7.0.200.0030.00716.53
7.0.140.0100.06721.92
7.0.60.0130.07320.02
7.0.50.0070.03717.86
7.0.40.0100.04720.23
7.0.30.0230.08020.33
7.0.20.0270.07020.10
7.0.10.0100.03720.12
7.0.00.0100.05020.06
5.6.280.0000.07720.96
5.6.210.0030.04320.72
5.6.200.0070.03718.25
5.6.190.0170.05720.59
5.6.180.0230.04320.52
5.6.170.0370.08720.47
5.6.160.0000.04320.52
5.6.150.0130.05018.28
5.6.140.0070.03318.19
5.6.130.0000.06318.15
5.6.120.0000.07020.98
5.6.110.0000.07721.02
5.6.100.0100.04321.00
5.6.90.0070.08321.11
5.6.80.0030.04320.51
5.5.350.0030.08020.32
5.5.340.0230.06717.98
5.5.330.0070.04020.38
5.5.320.0400.06020.30
5.5.310.0270.06320.34
5.5.300.0070.07018.00
5.5.290.0100.07017.98
5.5.280.0070.03720.78
5.5.270.0130.07720.85
5.5.260.0100.08020.80
5.5.250.0000.06720.67
5.5.240.0230.05720.36
5.4.450.0500.05019.64
5.4.440.0430.04019.26
5.4.430.0530.03319.38
5.4.420.0070.05719.62
5.4.410.0170.05019.28
5.4.400.0130.05319.09
5.4.390.0200.04719.12
5.4.380.0100.05319.07
5.4.370.0130.04719.07
5.4.360.0200.04319.02
5.4.350.0120.04312.03
5.4.340.0100.04512.02
5.4.320.0030.03912.51
5.4.310.0040.04112.50
5.4.300.0070.03712.50
5.4.290.0070.03812.50
5.4.280.0120.04712.40
5.4.270.0080.04012.40
5.4.260.0090.04412.40
5.4.250.0070.03812.40
5.4.240.0000.06019.00
5.4.230.0100.07018.84
5.4.220.0130.05018.74
5.4.210.0070.05319.02
5.4.200.0170.04318.76
5.4.190.0170.06719.02
5.4.180.0070.05719.02
5.4.170.0000.05718.98
5.4.160.0070.05318.93
5.4.150.0130.05318.94
5.4.140.0100.05016.59
5.4.130.0030.05016.39
5.4.120.0130.04316.36
5.4.110.0100.05016.62
5.4.100.0030.07016.66
5.4.90.0100.04316.29
5.4.80.0070.07016.64
5.4.70.0000.05316.40
5.4.60.0130.04016.44
5.4.50.0130.04016.33
5.4.40.0200.03316.43
5.4.30.0070.05016.45
5.4.20.0100.04316.46
5.4.10.0100.05016.43
5.4.00.0170.03715.84
5.3.290.0060.04012.80
5.3.280.0000.05714.74
5.3.270.0100.05014.61
5.3.260.0000.05714.84
5.3.250.0200.06714.84
5.3.240.0000.05714.70
5.3.230.0170.04314.59
5.3.220.0000.05714.68
5.3.210.0100.05014.64
5.3.200.0100.04314.50
5.3.190.0030.06014.66
5.3.180.0100.04714.66
5.3.170.0100.04714.79
5.3.160.0100.04314.66
5.3.150.0100.04714.56
5.3.140.0030.05714.55
5.3.130.0070.05314.69
5.3.120.0100.05314.57
5.3.110.0130.06014.61
5.3.100.0070.05013.89
5.3.90.0130.06714.11
5.3.80.0030.05014.01
5.3.70.0030.05014.09
5.3.60.0030.05013.91
5.3.50.0130.04714.03
5.3.40.0130.04314.02
5.3.30.0030.05014.08
5.3.20.0030.05013.88
5.3.10.0100.04713.82
5.3.00.0030.05313.48
5.2.170.0030.04311.05
5.2.160.0030.04311.23
5.2.150.0100.03711.13
5.2.140.0030.04311.32
5.2.130.0100.03310.94
5.2.120.0070.04311.18
5.2.110.0100.05011.11
5.2.100.0070.03711.32
5.2.90.0030.05711.06
5.2.80.0070.04311.05
5.2.70.0000.06311.18
5.2.60.0170.03711.24
5.2.50.0100.03311.11
5.2.40.0100.04311.09
5.2.30.0030.04011.06
5.2.20.0030.03711.14
5.2.10.0130.03010.95
5.2.00.0030.04010.95
5.1.60.0100.04010.05
5.1.50.0000.03710.04
5.1.40.0030.0339.99
5.1.30.0070.03710.53
5.1.20.0030.03310.34
5.1.10.0000.04010.05
5.1.00.0000.03710.16
5.0.50.0070.0238.47
5.0.40.0030.0278.45
5.0.30.0070.0378.32
5.0.20.0070.0238.20
5.0.10.0000.0278.25
5.0.00.0030.0408.21
4.4.90.0100.0176.78
4.4.80.0000.0206.78
4.4.70.0070.0176.78
4.4.60.0070.0176.78
4.4.50.0030.0306.78
4.4.40.0000.0336.78
4.4.30.0030.0206.78
4.4.20.0000.0236.78
4.4.10.0070.0176.78
4.4.00.0030.0336.78
4.3.110.0000.0236.78
4.3.100.0000.0206.78
4.3.90.0000.0206.78
4.3.80.0000.0436.78
4.3.70.0000.0206.78
4.3.60.0030.0176.78
4.3.50.0000.0206.78
4.3.40.0030.0306.78
4.3.30.0030.0206.78
4.3.20.0030.0206.78
4.3.10.0030.0206.78
4.3.00.0200.01714.48

preferences:
40.74 ms | 400 KiB | 5 Q